Dont worry about sounding like a jerk. Just go along for the ride and see many things that abound on GC!
As you should know, Phi Betta Kappa is considered the Cradle of Greek Dom.
Many things have changed over the years, PhiBK has become a Badge of Honor for the Bright kids who attain Good GPAs.
Most Greek Organizations tried to pattern themselves after PhiBK and also have morphed over the many years to today.